LBC Bakery Equipment LRO-1E Installation Manual
MODELS LRO-1E and LRO-2E
Electric Roll-in Rack Ovens
Installation and Operations Manual
REV 05/2011
READ FIRST
THIS MANUAL MUST BE RETAINED FOR FUTURE REFERENCE. READ, UNDERSTAND
AND FOLLOW THE INSTRUCTIONS AND WARNINGS CONTAINED IN THIS MANUAL.
FOR YOUR SAFETY
DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN
THE VICINITY OF THIS OR ANY OTHER APPLIANCE.
POST IN A PROMINENT LOCATION:
I
WARNING: IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR
MAINTENANCE CAN CAUSE PROPERTY DAMAGE, INJURY OR DEATH. READ THE
INSTALLATION, OPERATING AND MAINTENANCE INSTRUCTIONS THOROUGHLY
BEFORE INSTALLING OR SERVICING THIS EQUIPMENT.
DANGER POTENTIALLY HAZARDOUS SITUATION WHICH, IF NOT
AVOIDED, COULD RESULT IN DEATH.
WARNING POTENTIALLY HAZARDOUS SITUATION WHICH, IF NOT
AVOIDED, COULD RESULT IN DEATH OR SERIOUS INJURY.
CAUTION POTENTIALLY HAZARDOUS SITUATION WHICH, IF NOT
AVOIDED, MAY RESULT IN MINOR OR MODERATE INJURY.
NOTICE Helpful operation and installation instructions and tips are
present.
Model #: Purchased From:
Serial #:
Location:
Date Purchased:
Purchase Order #:
Date Installed:
For Service, Call:
ETL File 3028821 Rev 6-2010
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TABLE OF CONTENTS
CHAPTER PAGE
1. TABLE OF CONTENTS ............................................................................... 3
2. WARNING..................................................................................................... 4
3. EQUIPMENT DESCRIPTION...................................................................... 7
4. INSTALLATION INSTRUCTIONS ............................................................. 10
5. EMERGENCY OPERATION........................................................................ 17
6. GENERAL OPERATION.............................................................................. 18
7. PROGRAMMING.......................................................................................... 19
8. GENERAL MAINTENANCE ....................................................................... 20
9. SAFETY CONSIDERATIONS ..................................................................... 25
10. ILLUSTRATED PARTS BREAKDOWN..................................................... 26
11. WIRING DIAGRAMS................................................................................... 36
12. RESISTANCE CHARTS............................................................................... 39
13. TROUBLESHOOTING ................................................................................. 40
14. WARRANTY………………………………………………………………...45
ETL File 3028821 Rev 6-2010
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WARNINGS
WARNING THE WATER FROM THE STEAM DRAIN OUTLET IS EXTREMELY
HOT AND MAY CAUSE SERIOUS BURNS.
NOTICE
Left rear drain point is provided. Route to a floor drain. A 1”
gap must be provided between oven drain and floor drain.
PG. 7
PG. 7
WARNING WIRES ENTERING THE DISCONNECT MAY STILL BE LIVE EVEN
WHEN THE SWITCH IS TURNED OFF. SWITCH THE MAIN BREAKER
AT THE WALL TO “OFF” WHEN SERVICING THE OVEN
CAUTION
TO REDUCE THE RISK OF FIRE, THE APPLIANCE IS TO BE
MOUNTED ON FLOORS OF NON-COMBUSTIBLE CONSTRUCTION
WITH NON-COMBUSTABLE FLOORING AND SURFACE FINISH AND
WITH NO COMBUSTIBLE MATERIAL AGAINST THE UNDERSIDE
THEREOF, OR ON NON-COMBUSTABLE SLABS OR ARCHES
HAVING NO COMBUSTIBLE MATERIAL AGAINST THE UNDERSIDE.
SUCH CONSTRUCTION SHALL EXTEND A MINIMUM OF 12-INCHES
BEYOND THE EQUIPMENT ON ALL SIDES. See fig. 1
Fig. 1
Floor
Construction
PG.
8,19
PG. 10
ETL File 3028821 Rev 6-2010
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WARNINGS CONT’D
WARNING
WARNING
CAUTION
CAUTION
WARNING
WARNING
DO NOT UNLOAD THE RACK FROM THE OVEN WHILE THE
CARRIER IS IN THE LIFT POSITION. LOADED RACKS CAN BE
EXTREMELY HEAVY.
DO NOT REMOVE A FLAMING PRODUCT FROM THE OVEN.
SEVERE BURNS AND PROPERTY DAMAGE CAN RESULT.
THIS APPLIANCE, WHEN INSTALLED, MUST BE ELECTRICALLY
GROUNDED IN ACCORDANCE WITH LOCAL CODES, OR IN THE
ABSENCE OF LOCAL CODES, WITH THE NATIONAL ELECTRICAL
CODE, ANSI/NFPA 70-1996.
FOR INSTALLATION IN CANADA THE INSTALLATION MUST BE IN
ACCORDANCE WITH CAN/CGA-B149.1&2 OF THE INSTALLATION
CODE, AND LOCAL CODES WHERE APPLICABLE. ALL ELECTRIC
WIRING MUST BE IN ACCORDANCE WITH THE CURRENT
CANADIAN ELECTRICAL CODE, C22.1 PART 1. GROUNDING THIS
APPLIANCE MUST CONFORM TO CANADIAN ELECTRICAL CODE,
CSA C22.2.
INSTALLATION OF THE UNIT MUST BE DONE BY PERSONNEL
QUALIFIED TO WORK WITH ELECTRICITY AND PLUMBING
IMPROPER INSTALLATION CAN CAUSE INJURY TO PERSONNEL
AND /OR DAMAGE TO EQUIPMENT. UNIT MUST BE INSTALLED IN
ACCORDANCE WITH ALL APPLICABLE CODES.
DO NOT ALLOW ANY PART OF YOUR BODY TO BE UNDER THE
OVEN DURING THE LIFTING PROCESS. KEEP EVERYONE CLEAR
FROM THE OVEN IF IT SHOULD FALL.
PG. 17
PG. 17
PG. 10
PG. 11
PG. 11
PG. 11
NOTICE
NOTICE
WARNING
NOTICE
CAUTION
CAUTION
It is imperative that a mechanical exhauster is installed, and a
pressure sensitive switch is installed at the collar of the hood. If a
negative draw of 0.6 is not achieved, the burner will not come on.
No other exhaust systems may be connected to this system. Do not
try to vent or exhaust another appliance into this hood.
WHEN REMOVING THE RACK OR PRODUCT FROM THE RACK
WEAR OVEN MITTS TO AVOID SERIOUS BURNS.
Always ensure the grease filters supplied with the oven are used.
Replacement filters may be ordered from an LBC Bakery service
representative.
IF BLOWER ROTATION IS INCORRECT, IT WILL CAUSE SEVERE
DAMAGE TO HEAT EXCHANGER
CAUTION SHOULD BE TAKEN WHEN ENCLOSING HOOD TO
CEILING AND OVEN IS UNDER A FIRE SPRINKLER; HOOD
EXHAUST STACK WILL EMIT HEAT.
PG. 14
PG. 14
PG. 17
PG. 15
PG. 16
PG. 8
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WARNINGS CONT’D
WARNING
THIS LBC BAKERY OVEN PRODUCES HUMIDITY THAT CAN CAUSE
THE INTERIOR FLOORING AND ADJACENT EXTERIOR FLOORING
TO BECOME SLIPPERY. USE EXTREME CAUTION WHEN WALKING
ON A WET OR DAMP FLOOR.
PG. 18
NOTICE
NOTICE
WARNING
NOTICE
NOTICE
The ambient temperature outside the oven should not exceed 104° F
(40° C). This includes the temperature of the air above and around
the oven.
During the first few hours of operation you may notice a small
amount of smoke coming off of the oven, and a faint odor from the
smoke. This is normal for a new oven and will disappear after the
first few hours of use.
WHEN THE LOADING DOOR IS OPENED, HOT AIR AND STEAM ARE
RELEASED FROM THE OVEN INTERIOR. TO AVOID BURNS OPEN
DOOR SLOWLY AND KEEP YOUR FACE AND HANDS CLEAR OF
THE OPENING. ALL INTERIOR SURFACES ARE VERY HOT. DO NOT
TOUCH ANYTHING WITHOUT OVEN MITTS.
Service on this, or any other, LBC BAKERY appliance must be
performed by qualified personnel only. Consult your authorized
service agency directory or call the factory at 1-888-722-5686 or go
to WWW. LBCBAKERY.COM for the service agent nearest you.
To maintain optimum safety and performance for LBC BAKERY
oven models LRO-1E & LRO-2E, it is recommended that a program
of scheduled periodic maintenance be implemented. It is the sole
responsibility of the user to establish, schedule and enforce such a
program. Although the actual service interval will vary depending on
the environment in which the equipment is operating, it is
recommended the following be done by an LBC BAKERY authorized
service agency at least every 6 months.
PG. 18
PG. 18
PG. 18
PG. 20
PG. 20
NOTICE
WARNING
NOTICE
ETL File 3028821 Rev 6-2010
For periodic maintenance and repairs, electrical diagrams are
included in this manual and with the oven (on the back of the control
door).
SINCE RESETS FOR THE CIRCULATION BLOWER MOTOR AND THE
LIFTER MOTOR / ROTATOR MOTOR ARE AUTOMATIC, ALL POWER
TO THE OVEN MUST BE TURNED OFF BEFORE SERVICING.
If shutter settings are to be adjusted differently than the
recommended factory settings, the best results will be obtained if
you; (A) Start with the factory settings; (B) Close shutters to lighten
a product in a given area- do not open shutters to darken a product;
(C) Do not move a shutter more than 1/32” or 1mm (see step gauge
and shutter setting illustration) at any one time; (D) Be sure all
settings for left hand shutters match those for right hand shutters;
and (E) Do not adjust more than two shutters per side per time (four
shutters total).
6
PG. 20
PG. 21
PG. 21
EQUIPMENT DESCRIPTION
Data Plate
On this plate you will find the oven model, serial number, electrical ratings, (BTU’s, and gas type for gas ovens),
and clearance specification. Data plate is located behind the controller door on component cover.
Exterior Construction
The LRO-1E exterior dimensions are 55” (139.7 cm) wide x 105” (266.7 cm) high x 51” (129.5 cm) deep at the
base.
The LRO-2E exterior dimensions are 72” (182.9 cm) wide x 105” (265.4 cm) high x 62” (157.5 cm) deep at the
base.
The Top, Front, Back, and Sides are constructed of stainless steel with 5 inches of insulation.
Floor level loading.
Type I or Type II hood with single point exhaust connection complying with Uniform Mechanical Code and
NFPA 96: State, County and local code may vary; always check with local code officials.
The oven door is constructed of stainless steel with a full height single pane window and an interior releasing
mechanism.
Interior Construction
The LRO-1E cavity dimensions are 28” (92.71 cm) wide x 75” (190.5 cm) high x 39” (99.06 cm) deep at its
deepest point. The interior is constructed of stainless steel.
The LRO-2E cavity dimensions are 40” (92.71 cm) wide x 75” (190.5 cm) high x 50” (99.06 cm) deep at its
deepest point. The interior is constructed of stainless steel.
Smooth and simple rack loading and unloading.
Gentle rack lift and rotation protects delicate products.
The rack is designed to hold up to twenty 18”x 26” sheet pans.
A built in steam generator produces steam quickly.
Fully adjustable airflow for even cooking.
Controls
Large digital display which is easy to understand and operate.
Icon-driven (touch) panel allows for easy operation.
Pre-Programmable Product Selections.
Heat Loss Compensation for consistent baking.
Technical
The oven requires a 208/240 VAC three-phase power supply and a 115 VAC single phase power supply for
controls.
The oven requires no clearance from combustible wall construction.
WARNING THE WATER FROM THE STEAM DRAIN OUTLET IS EXTREMELY
Steam Drain Outlet
Water exits the steam generating system through this outlet It is located at the lower right-hand jamb or left rear
corner of the oven.
NOTICE
ETL File 3028821 Rev 6-2010
HOT AND MAY CAUSE SERIOUS BURNS.
Left rear drain point is provided. Remove the plug from
the location required and route to a floor drain. A 1” gap
must be provided between oven drain and floor drain.
7
EQUIPMENT DESCRIPTION CONT’D
Floor Drain
This drain (customer supplied) receives the excess water from the steam generating system.
Rack Carrier
When the loading door is closed, the rack carrier lifts and rotates the oven rack.
Rack Stop
The two rack stops are located on the carrier and secure the oven rack in place during baking. The leading
edge of the forward stop must be manually flipped down to unload the oven rack. The stop will
automatically return to the up (loading) position when the rack is removed.
Hood
Steam and burner exhaust is discharged into the hood. Grease is channeled to and collected in a grease
cup for later removal.
Hood Exhaust
Cooking fumes pass through a duct to the hood exhaust outlet. A customer-supplied exhaust blower is
required. The hood can be wired to the external device terminals in the service box. This insures the hood
is on whenever the oven is on. The “POWER” switch on the oven control panel activates the blower. The
blower must be running before the oven will operate. A factory installed airflow switch disables heat
until airflow exists.
120V Circuit Breakers
Power to run the control panel and hood blower can be disconnected at these points. Switch to “OFF”
when servicing oven or blower.
WARNING WIRES ENTERING THE DISCONNECT MAY STILL BE LIVE EVEN
WHEN THE SWITCH IS TURNED OFF. SWITCH THE MAIN
BREAKER AT THE WALL TO “OFF” WHEN SERVICING THE
OVEN
3-Phase Circuit Breaker
This disconnect provides short circuit protection for the circulation blower motor. Switch to “OFF” when
servicing the oven.
Element Circuit Breakers
There are circuit breakers installed to provide short circuit protection for the elements.
Main Power Connection
A 3-pole terminal block located in the upper control panel for the incoming high voltage power
connection. See Page 14
Control Connection
A 2-pole terminal block and 1-pole circuit breaker is located above the controls for power hook up for the
controls. See Page 14
Hood Supply
A 1-pole circuit breaker is provided to supply power to the ventilator hood.
CAUTION
CAUTION SHOULD BE TAKEN WHEN ENCLOSING HOOD TO
CEILING AND OVEN IS UNDER A FIRE SPRINKLER; HOOD
EXHAUST STACK WILL EMIT HEAT.
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EQUIPMENT DESCRIPTION CONT’D
Circulation
Blower
Interior Door Release
Vent Blower Controls
Element
circuit
breakers
This door release allows the door to be opened from inside the oven.
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CAUTION
Receiving the Oven
TO REDUCE THE RISK OF FIRE, THE APPLIANCE IS TO BE
MOUNTED ON FLOORS OF NON-COMBUSTIBLE
CONSTRUCTION WITH NON-COMBUSTABLE FLOORING AND
SURFACE FINISH AND WITH NO COMBUSTIBLE MATERIAL
AGAINST THE UNDERSIDE THEREOF, OR ON NONCOMBUSTABLE SLABS OR ARCHES HAVING NO
COMBUSTIBLE MATERIAL AGAINST THE UNDERSIDE. SUCH
CONSTRUCTION SHALL EXTEND A MINIMUM OF 12-INCHES
BEYOND THE EQUIPMENT ON ALL SIDES. See fig. 1 Page 4.
INSTALLATION INSTRUCTIONS
Upon receipt, check for freight damage
on the freight bill at the time of delivery and signed by the carrier's agent. Concealed loss or damage
means loss or damage which does not become apparent until the merchandise has been unpacked. If
concealed loss or damage is discovered upon unpacking, make a written request for inspection by the
carrier's agent within 15 days of delivery. All packing material should be kept for inspection. Do not
return damaged merchandise to LBC Bakery Equipment. File your claim with the carrier.
Pre-Installation
Check the area where the oven is to be installed for the following:
• No electrical conduit or wires are to be under the floor of the oven.
• The oven must be mounted on a non-combustible surface. This includes the structure beneath the
floor. The floor must be level within 3/4”. See Fig. 1 Page 4, and above CAUTION!
• Ceiling height above the oven should be sufficient to allow servicing the lifter, vent, and blower
motor assemblies. The maximum height needed for tilting the oven up is 105 inches.
• Clear access is needed to the roof or exterior of the facility for hood exhaust. Check local codes for
correct venting.
• Caution should be taken when enclosing hood to ceiling and oven is under a fire sprinkler; hood
exhaust stack will emit heat.
• Access is needed for an air-gap drain in the rear left corner of the oven.
• Adequate space is needed in front of the oven to load and unload racks. Racks are hot and need
space to cool.
• The hood exhaust will need at least 600 CFM of make-up air.
• Local and national codes will require an electrical shut-off within a reasonable distance to the oven.
• Local and National codes will require access to a manual Gas Shut-off.
• The door swing will need to be clear to allow adequate loading and unloading of the oven. Check
the space next to the oven and be sure it does not interfere with the door.
Un-Crating
, both visible and concealed. Visible damage should be noted
The oven is shipped in one piece. (It can be uncrated and split in two for easier installation where door
openings are limited to 36 inches.)
Move the large oven crate into the room, near where it is to be installed. Allow clear access for a forklift
or lifting apparatus at the top end of the oven. The bottom end of the oven crate is beveled at the skids.
Check the crate for damage that may have occurred in shipping.
Remove crating materials and plastic wrap from the oven. Remove the heat exchanger vent duct from the
skid.
CAUTION THIS APPLIANCE, WHEN INSTALLED, MUST BE ELECTRICALLY
GROUNDED IN ACCORDANCE WITH LOCAL CODES, OR IN THE
ABSENCE OF LOCAL CODES, WITH THE NATIONAL
ELECTRICAL CODE, ANSI/NFPA 70-1996.
ETL File 3028821 Rev 6-2010
10
CAUTION FOR INSTALLATION IN CANADA THE INSTALLATION MUST BE
IN ACCORDANCE WITH CAN/CGA-B149.1&2 OF THE
INSTALLATION CODE, AND LOCAL CODES WHERE
APPLICABLE. ALL ELECTRIC WIRING MUST BE IN
ACCORDANCE WITH THE CURRENT CANADIAN ELECTRICAL
CODE, C22.1 PART 1. GROUNDING THIS APPLIANCE MUST
CONFORM TO CANADIAN ELECTRICAL CODE, CSA C22.2.
WARNING
INSTALLATION OF THE UNIT MUST BE DONE BY PERSONNEL
QUALIFIED TO WORK WITH ELECTRICITY AND PLUMBING.
IMPROPER INSTALLATION CAN CAUSE INJURY TO
PERSONNEL AND /OR DAMAGE TO EQUIPMENT. UNIT MUST
BE INSTALLED N ACCORDANCE WITH ALL APPLICABLE
CODES.
INSTALLATION CONT’D
WARNING
Raising
Raise the oven to its vertical, upright position with the use of a forklift or other lifting device.
Provide a means to lower the oven to the floor without dropping.
• Raise top end of each oven skid with a forklift until the oven is at 60° from horizontal. (If a forklift is
not available, use a pallet jack and successive stacks of pallets to raise the oven. DO NOT LIFT THE
OVEN BY HAND). Tilt the oven to the vertical position by hand from the raised position
• Ease the oven to the floor and do not allow it to fall over. OVEN HALVES ARE UNSTABLE.
Assembly
Note: Single oven halves come pre-bolted and will not require bolting together of oven halves.
Note: Nudge the halves with pry bars to move them. Do not force parts to fit.
• Move the erected oven halves to where the mating faces are 2-3 feet apart.
• Place the oven floor on the ground against the right wall of the oven and 6 inches forward of the rear
wall.
• Carefully raise the front edge of the right wall with a pry bar and slide the floor back until it touches the
back wall.
• Slide the right half of the oven toward the left half until the two halves mate together.
• Bolt the inner skin together at the rear, top and front header using 5/16-18 gimlet point screws
provided.
• Install ½-13x1 hex head bolts, nuts, and lock washers at the joint in the rear base, rear top frame and
header. Snug all bolts tight.
• Install the insulation provided at the center joint so that there are three layers and no voids.
• Slide the rear joint panel into the upper frame at the back of the oven and drop it into the lower frame to
close the back of the oven.
• Place the top insulation cover in place and secure it to the outer ceiling panel with the drill tip screws
provided.
DO NOT ALLOW ANY PART OF YOUR BODY TO BE UNDER THE
OVEN DURING THE LIFTING PROCESS. KEEP EVERYONE
CLEAR FROM THE OVEN IF IT SHOULD FALL.
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Assembly Cont’d
• Raise the front header cover into position between the front jambs and slip it over the header frame until it is flush
with the front. Install two drill-tip screws through the top flange of the header cover. Install #10x¾ stainless steel
sheet metal screws through the bottom flange of the header cover. Use care to keep the gasket in place.
• Install ¼-20x½” truss head stainless steel screws through the inner ceiling joint, inside the oven.
• Place the floor clamp strips around the inside walls of the oven. Install, using ¼-20x½” truss head screws, washers
and lock-washers; longer screws are provided for the overlapping joints at the corners. Do not tighten these screws
until the oven has been placed at its final location and leveled.
• If needed loosen lifter assembly mounting bolts and move the lifter assembly around until the rotator assembly is
clear of the lifter frame and all moving parts are free (this should be where the lifter is centered on the rotator shaft).
Anchor the lifter assembly in place with the fasteners provided.
• Remove the snap ring, square washer and shipping spacer from the rotator shaft.
• Remove the rack carrier from the bottom of the hood crate. Install the carrier on the rotator shaft inside the oven
using the snap ring provided. Install the four set-screws in the carrier-shaft collar. Do not tighten yet, as this will
allow the carrier to be aligned later.
• Connect the white plastic connector from the main harness to the white plastic connector on the lifter harness.
• Check the location of all of the wires to ensure that they are free of sharp edges or moving parts.
• Install the front transport wheel on the left jamb by raising the oven with a crowbar then lowering the left front
jackscrew, located behind the control door on the bottom. Use the pan head machine screws provided to secure the
removable front transport wheel.
• Make sure both front leveling points are raised before transporting oven to avoid floor damage
jackscrew, located behind the control door on the bottom of the oven. 2) Right front jackscrew located at the top
right (Operators viewpoint) of the oven.
• Extend the rear transport wheels by lowering the leveling jack-screws in the rear corners on top of the oven.
INSTALLATION CONT’D
. 1) Left front
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INSTALLATION CONT’D
Setting
Remove the vinyl protective coating from all of the exterior surfaces.
Roll the oven into its final installed position. (You may wish to install the hood before locating the oven.)
Adjust the left front leveling screw until the weight is removed from the wheel assembly. Remove the wheel assembly.
For right hand doors: adjust the rear leveling screws and the left front leveling screws until the left jamb is level from
left to right and front to back. Lock the left front adjusting screw in place.
Install the loading door.
• Remove the loading door from its crate.
• Stand the door upright and move it into place with a hand truck.
• Align and screw the hinge plate to the door jamb.
• Use care to avoid damaging the door seal.
Adjust the right front leveling screw until the gap at the top of the door opening is even all across. Check the gap along
the left side of the door. Recheck the level of the oven.
For left hand doors: adjust the rear leveling screws and the right front leveling screws until the right jamb is level from
left to right and front to back. Lock the right front adjusting screw in place.
Install the loading door.
• Remove the loading door from its crate.
• Stand the door up right and move it into place with a hand truck.
• Raise the door hinges over the jamb hinges with the hand truck and lower into place.
• Use care to avoid damaging the door seal.
Adjust the left front leveling screw until the gap at the top of the door opening is even all across. Check the gap along the
right side of the door. Recheck the level of the oven.
Loosen the floor clamp screws around the perimeter of the oven floor.
Walk around the stainless floor until it is in full contact with the concrete floor. Retighten the floor clamp screws.
Drill the floor with a 3/8” diameter drill to accept the concrete floor anchors.
• Mark the drill bit at 1-1/2” from the end with tape. Drill until the mark is at the top of the stainless steel floor.
Do not drill too deep.
• Clean the holes of concrete dust.
• If the oven is mounted on stone or ceramic tile, extend the holes and the anchors into the concrete substrate.
Install the anchors in the holes and set in place with the anchor-setting tool. (Note: One good solid blow is better than
many little taps.)
Install the flat head screws in the anchors. Use the anchor washers in the holes at the middle of the floor these are larger
anchor holes.
Adjust the Loading door latch to ensure a good seal around the door. Do not over tighten the door.
Adjust the floor seal at the bottom of the door with door closed to insure a good seal to the floor when the door is
closed. This is important for as even of bake as possible.
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INSTALLATION CONT’D
Check the level of the rack carrier shaft. Place an accurate level on the top of the carrier and rotate the carrier
to the four points of the compass. The level bubble should be in the same position relative to the carrier
when rotated. If not, remove the carrier and level the shaft.
• Loosen the four corner screws on the rotator shaft level adjusting plate on the under side of the
inner ceiling. Remove the two remaining screws.
• Move the shaft manually until the shaft is level in all four directions.
• Retighten the four corner screws.
Drill two new screw holes in the adjusting plate with a #7 drill bit and tap #¼-20. Install the two remaining
screws to lock the shaft level in place.
NOTICE It is imperative that a mechanical exhauster is installed, and the
pressure sensitive switch provided is connected at the collar of
the hood. If a negative draw of 0.6” W.C. is not achieved, the
burner will not come on.
NOTICE No other exhaust systems may be connected to this system. Do
not try to vent or exhaust another appliance into this hood.
Installing the Hood
• Remove the hood from the hood crate. Place the body of the hood on the floor with the open side down.
Use cardboard or other protective material to avoid scratches.
• Remove all protective vinyl coatings and place the hood side support trim on each side of the hood and
screw to the front of the hood with (4) #1/4-20 stainless steel truss head machine screws and spacer
bushings. Install (4) #10-32 truss head stainless steel machine screws through the side support trim and
into the top of the hood.
• Attach the rear trim to the opposite end of the hood side support trim using (4) ¼-20 truss head stainless
steel machine screws.
• Place the combustion exhaust duct (shipped strapped to the oven skid) on the top of the heat exchanger
exhaust opening.
• Lift the hood and trim assembly and place it over the top of the oven so that the side and rear trim rest on
the top of the oven.
• Push the hood assembly toward the rear of the oven and align the vent exhaust opening and the exhaust
duct opening with the associated ducts on the oven.
• Attach the hood side support trim and the rear trim to the top of the oven with ¼-20 stainless steel truss
head machine screws.
• Attach the hood to the exhaust and vent ducts using #10 stainless steel sheet metal screws.
• Install the hood airflow sensor tube at the hood collar opening and at the airflow switch in the lifter
assembly located at the top of the oven. Double-check this connection for leaks or crimps in the tube or
hose.
• Install the hood deflector using #10-32 stainless steel round head machine screws at the back of the
deflector and #10-32 stainless steel truss head machine screws at three holes at the front edge of the
deflector.
• Place the three hood filters and the filler channel in the hood filter holder and onto the front lip of the
hood.
• Place the hood grease cup on the rear lip of the hood at the drain opening.
• Install the hood valance on the front of the hood.
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